The Grove Sound Sensor module is a simple microphone. Based on the power amplifier LM386 and a microphone, it can be used to detect the sound strength of the environment. The value of output can be adjusted by the potentiometer.
Features:
Grove compatible interface
Wide supply voltage range: 4V-12V
Low quiescent current drain: 4mA
2.0cm x 2.0cm twig module
Minimum external parts
Adjustable gain